Abduce is a verb that means the same as “abduct” — in the anatomical and physiological sense, it means to move a body part away from the midline of the body (or away from a neighbouring part). It is a somewhat older or more formal term; in everyday medical use, “abduct” is far more common.

The word comes from Latin ab- (“away from”) + ducere (“to lead or draw”), so it literally means “to draw away.”

What it describes

In the body, “abduce” (like “abduct”) describes a specific type of movement: shifting a limb or other part outward, away from the centre line of the body. For example:

• Raising your arm out to the side, away from your torso, abduces (abducts) it
• Spreading your fingers apart abduces them away from the middle finger

The opposite movement — bringing a part back toward the midline — is called adduce (or, more commonly, adduct).

Why it matters

These movement terms give anatomy and medicine a precise, direction-based vocabulary. Muscles, for instance, are often named for what they do: an abductor muscle is one that abduces (moves a part away from the midline), while an adductor muscle pulls it back. Using exact terms like these avoids confusion when describing how the body moves.

A note on usage

In practice you will almost always see “abduct” rather than “abduce” in modern textbooks and clinical notes. They share the same root and the same core meaning; “abduce” is simply the less common form. Recognizing both, and remembering that ab- = “away from”, makes it easy to keep these movement terms straight.